greedy-mesher

greedy-mesher

A flexible system for generating greedy meshes of ndarrays.

Example

var compileMesher = require("greedy-mesher")

var mesher = compileMesher({
  extraArgs: 1,
  order: [1, 0],
  append: function(lo_x, lo_y, hi_x, hi_y, val, result) {
    result.push([[lo_x, lo_y], [hi_x, hi_y]])
  }
})

var test_array = require("ndarray-pack")(
[[0, 2, 0, 0],
 [0, 1, 1, 0],
 [0, 1, 1, 0],
 [0, 0, 0, 0]])

var result = []
mesher(test_array, result)
console.log(result); 
// outputs: [ [ [ 1, 0 ], [ 2, 1 ] ], [ [ 1, 1 ], [ 3, 3 ] ] ]

Install

npm install greedy-mesher

require("greedy-mesher")(options)

This routine generates a greedy mesher for a given order and list of closures

• order An array representing the order in which to mesh the input.
• extraArgs The number of optional arguments to pass to each closure.
• skip(a,...) A closure which tests if the given voxel should be skipped. (Default: skips 0)
• merge(a,b,...) A closure which tests if voxels a and b can be merged in the mesh. (Default: checks if voxels are equal)
• append(lo0, lo1, ..., lon, hi0, hi1, ..., hin, val, ...)
• useGetter if set, use .get() to access underlying data store
• debug If set, print out the generated source code to the console

Returns A compiled mesh generator. Call this method using:

var my_mesh = mesher(array, option1, option2, ...)

Credits

(c) 2013 Mikola Lysenko. MIT License